Hexagonal bolt with flange EN 1665, steel 10.9, zinc-nickel, silver (ZNSHL)
EN 1665 steel 10.9, zinc nickel
SCR-HEX-FLG-EN1665-10.9-(ZNSHL)-M12X55
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Fasteners with a zinc-plated chromium (VI)-free zinc-nickel silver coating (ZNSHL) are suitable for applications with a high risk of corrosion. The coating comprises a zinc-nickel alloy layer and a sealing coat (top coat with integrated lubricating particles)
Corrosion resistance:
- Diameter ≥ M2 — 360h*
- Diameter ≥ M4 — 600h*
- Diameter ≥ M10 — 720h*
No base metal corrosion at points without thread in salt spray mist testing according to DIN EN ISO 9227 NSS
Overview of advantages:
- Corrosion resistance of up to 720 hours against base metal corrosion in accordance with DIN EN ISO 9227 NSS
- Chromium(VI)-free
- Adjusted friction coefficient range from 0.09–0.14 μ due to top coat with integrated lubricating particles
- Thermal capacity up to 120°C
- Even coating distribution
- Functional and decorative
ISO EN 1665 replaces DIN 6921 | There is some limited similarity | Some head heights have been changed | Flange diameter is unchanged | Width across flats changed for M10, M12, M14 and M16, M20 | Strength 12.9 omitted | Fine thread omitted.
Datasheets(X)
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Thread type x nominal diameter (d1) | M12 |
Length (l1) | 55 mm |
Head diameter (dc) | 26.6 mm |
Head height (k1) | 11.8 mm |
Standards | EN 1665 |
Material | Steel |
Property class | 10.9 |
Surface | Zinc nickel silver |
RoHS-compliant | Yes |
Corrosion protection period | 720 h |
Head type | Hexagon head with flange |
Drive type | Outer hexagon |
External drive (s1) | WS18 |
Thread type | Metric thread |
Pitch | 1.75 mm |
Thread form | Standard metric thread |
Thread design | Partial thread |
Thread length (metric thread) | 30 mm |
Product class | A |